During an assessment of the cranial nerves, the nurse finds the following: Asymmetry when the client frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and an escape of air from the right side when the client puffs their cheeks. This would indicate the dysfunction of which of the cranial nerves?
Motor component of IV (Trochlear)
Motor and sensory components of XI (Accessory)
Motor component of VII (Facial)
Motor component of X (Vagus) and sensory component of XII (Hypoglossal)
The Correct Answer is C
A) Motor component of IV (Trochlear): The trochlear nerve primarily controls the superior oblique muscle of the eye, which is responsible for downward and lateral eye movements. The findings described do not relate to eye movement and therefore do not indicate dysfunction of this nerve.
B) Motor and sensory components of XI (Accessory): The accessory nerve innervates the sternocleidomastoid and trapezius muscles, primarily affecting head rotation and shoulder elevation. The symptoms noted in the assessment do not pertain to these muscle functions, so this option is not correct.
C) Motor component of VII (Facial): The signs of asymmetry in frowning, uneven eyebrow lifting, sagging eyelids, and air escaping when puffing the cheeks are characteristic of dysfunction in the facial nerve (cranial nerve VII). This nerve controls the muscles of facial expression, and impairment would lead to the described asymmetrical movements.
D) Motor component of X (Vagus) and sensory component of XII (Hypoglossal): The vagus nerve affects autonomic functions and some swallowing muscles, while the hypoglossal nerve controls tongue movements. Neither nerve is primarily responsible for the facial expressions described in the assessment findings, making this option incorrect.
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Correct Answer is B
Explanation
A) To determine the location of the pain: While knowing the location of the pain can be relevant for overall assessment, this is not the main reason for reassessing pain after treatment. The focus is more on understanding the response to treatment rather than just identifying where the pain is.
B) To establish the effectiveness of medication: Reassessing pain after treatment is essential to evaluate how well the medication has alleviated the pain. This helps the nurse determine if the current pain management approach is effective or if modifications are necessary to improve the patient's comfort.
C) To make changes to the patient's pain goal: While understanding pain levels can inform care planning, the primary purpose of reassessing pain is to gauge treatment effectiveness rather than directly changing the pain management goals at that moment.
D) To measure the pain's duration: Measuring the duration of pain may be useful in a broader context of pain management, but it is not the immediate rationale for reassessing pain after treatment. The focus should be on the effectiveness of the intervention rather than just how long the pain lasts.
Correct Answer is D
Explanation
A) Inflammation of the lamina of the involved vertebra: While inflammation can contribute to pain, it is not the primary cause in the context of a herniated disc. The pain associated with a herniated disc is typically related to nerve compression rather than inflammation of the lamina itself.
B) Shifting of two adjacent vertebrae out of alignment: This describes a different condition, such as spondylolisthesis. A herniated disc primarily involves the displacement of disc material, rather than a significant misalignment of the vertebrae.
C) Increased pressure of cerebral spinal fluid within the vertebral column: Increased cerebrospinal fluid pressure is not typically associated with herniated discs and does not directly cause the pain related to this condition.
D) Compression of the spinal cord by the extruding disc: This is the most accurate explanation for the patient's pain. A cervical herniated disc can protrude and compress nearby nerve roots or the spinal cord itself, leading to significant pain, weakness, and other neurological symptoms. This compression is the primary cause of pain in patients with this diagnosis.